#include<stdio.h>
int main()
{
	int n = 10;
	switch (n)
	{
	case 0:
	{
		printf("0\n");
	}
	case 1:
	{
		printf("1\n");
	}
	case 2:
	{
		printf("2\n");
	}break;
	case 3:
	{
		printf("3\n");
	}
	default:
	{
		printf("4\n");
	}
	}
	return 0;
}